Would You Expect Motor Units to Vary in Size? If

question 19

Multiple Choice

Would you expect motor units to vary in size? If so,which of these structures would probably have the largest ones?

• A)No; all motor units are the same size.
• B)Yes; a motor unit in the thigh to control leg movements would be the largest one.
• C)Yes; a motor unit that controls eye movements would be the largest one.
• D)Yes; a motor unit that controls hand movements would be the largest one.

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Definitions:

Units

A measure of quantity, such as items or pieces, used in production and inventory contexts.

Mixed Cost

A cost composed of both fixed and variable components, changing in total with activity level but not proportionally.

True Variable Cost

Costs that vary exactly with the level of activity or production volume, including direct materials and some elements of manufacturing overhead.

Fixed Cost

Costs that do not vary with the level of output or sales, remaining constant regardless of the business activity level, such as rent and salaries.